The HPV vaccine, Gardasil, is recommended for all children/young adults between the ages Of 9 and 26 years. It is a quadrivalent vaccine. What is the definition of quadrivalent?
A. It must be administered every 4 years to be effective.
B. It is administered in a series of four shots over a 6-month period.
C. It prevents infection from the four most prevalent types of HPV that cause cervical cancer.
D. It reduces the risk of infection by four times.
Answer: C